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Home >> BMW >> 2021 >> M440i xDrive >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> General Electrical System -- Repair (G22, G23 & G26) >> 61 12 Auxiliary Cable >> 61 12 002 Replacing the positive battery cable (for safety battery terminal) (from battery to rear positive distribution) (4' Series coupe models) >> Removing the safety battery terminal

Removing the safety battery terminal

WARNING: Working on 12V electrical system. 
Risk of short circuits! risk of fire! 
  • Make sure that there is No charger  connected to the jump start terminal in the engine compartment.
  • Detach battery ground lead from battery.
  • For auxiliary batteries: detach battery minus cables from all auxiliary batteries.

Preliminary work 

WARNING: Working on 12V electrical system. 
Risk of short circuits! risk of fire! 
  • Make sure that there is No charger  connected to the jump start terminal in the engine compartment.
  • Detach battery ground lead from battery.
  • For auxiliary batteries: detach battery minus cables from all auxiliary batteries.
NOTE: Risk of damage 
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (ibs). 
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults. 
  • Detach battery terminal from battery pole by carefully shifting to and fro. do not pry off using a tool.
G14907865Courtesy of BMW OF NORTH AMERICA, INC.